By SILSEF
By combining the right nanopattern to a hydrophobic material, SILSEF can make super water repellent surfaces, where droplets do not adhere and just bounce on the surface. This can also be used to clean a surface simply by rolling water drops. Water repellent Etched Si and glass substrates Water repellent sol-gel coated sapphire substrates: Naked substrate (left), Coated substrate (center) coated nano-patterned substrate Water repellent or injection molding polymer substrate Self cleaning super-hydrophobic samples, with water repellency properties. The dust and pollution deposited on the surfaces has more affinity towards water than towards the nanopatterned surfaces.